Rerouted (renamed, verified). The GitHub user or repository was renamed. The tag is still there, at the new name. The Lamdera package server serves a copy recovered from https://github.com/IntrepidShape/elm-web3.
What we checked: The repo moved to github.com/IntrepidShape/elm-web3 and tag 1.0.0 is there; its commit 9d919244f65e is from 2026-05-09 11:48 UTC, before the version was published (2026-05-09 11:58 UTC); elm.json is byte-identical to package.elm-lang.org's; the exposed modules match docs.json; the zip's SHA-1 is not the published one (GitHub's zip no longer comes out byte for byte the same), so the contents were checked instead.
The Lamdera compiler uses this copy and prints a one-line notice saying so. elm itself fails to download this version.
Details · package.elm-lang.org's zip: https://github.com/intrepidshape/elm-web3/zipball/1.0.0/
Helpers to encode contract call parameters to JSON values for passing through ports to the JS Web3 layer.
Encode a bool argument.
Encode a string argument.
Encode raw bytes as a hex string.
Encode a bytes32 value.
Encode a bytesN value (bytes1 through bytes31).
Encode a dynamic array argument.
-- Transfer(address[],uint256[])
Encode.list Encode.address recipients
Encode.list Encode.uint256 amountsEncode a 2-tuple (struct with two fields).
-- swap(address token, uint256 amount)
Encode.tuple2 Encode.address Encode.uint256 ( tokenAddr, amount )Encode a 3-tuple (struct with three fields).
Encode an Address argument.